CN107176237A - Rocking arm for bicycle drive - Google Patents
Rocking arm for bicycle drive Download PDFInfo
- Publication number
- CN107176237A CN107176237A CN201710145615.7A CN201710145615A CN107176237A CN 107176237 A CN107176237 A CN 107176237A CN 201710145615 A CN201710145615 A CN 201710145615A CN 107176237 A CN107176237 A CN 107176237A
- Authority
- CN
- China
- Prior art keywords
- screw
- rocking arm
- female screw
- inner panel
- outside plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
- B62M9/121—Rear derailleurs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62J13/00—Guards for chain, chain drive or equivalent drive, e.g. belt drive
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M9/00—Transmissions characterised by use of an endless chain, belt, or the like
- B62M9/04—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio
- B62M9/06—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like
- B62M9/10—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like
- B62M9/12—Transmissions characterised by use of an endless chain, belt, or the like of changeable ratio using a single chain, belt, or the like involving different-sized wheels, e.g. rear sprocket chain wheels selectively engaged by the chain, belt, or the like the chain, belt, or the like being laterally shiftable, e.g. using a rear derailleur
- B62M9/121—Rear derailleurs
- B62M9/126—Chain guides; Mounting thereof
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Gears, Cams (AREA)
- Pivots And Pivotal Connections (AREA)
Abstract
The present invention relates to a kind of rocking arm (10) for bicycle drive, including：Inner panel (12)；Outside plate (14)；With the inner panel (12) and the integrated a pair of pin of the outside plate (14)；And a pair of gears (20,22) between the inner panel (12) and the outside plate (14) are disposed in, the gear (20,22) is each rotatably mounted on the corresponding pin in the pair of pin.At least one described pin is inserted in the non-threaded through hole (12a, 12b, 14a, 14b) being formed in the inner panel (12) and the outside plate (14), and is limited by screw (26) and female screw (36).(14) place of the screw (26) in the inner panel and the outside plate and with external screw thread (26d) and against surface (26b).Another (12) place of female screw (36) in the inner panel and outside plate, with engaging external screw thread (26d) internal thread (36d) and with against surface (36b).
Description
Technical field
The present invention relates to a kind of rocking arm for bicycle drive.
Preferably, the bicycle is race bicycle.
Especially, the bicycle drive quoted from patent specification background is rear transmission device, rear transmission dress
Putting makes to move between different sprocket wheels of the chain in the associated chain wheel assembly of the trailing wheel of bicycle.
Background technology
Afterwards transmission device generally include by the cable with sheath mechanically (mechanically actuated rear transmission device) or
The articulated quadrilateral actuating movement mechanism activated by electro-motor in electronic mode (the rear transmission device of electric actuation).
Especially, rear transmission device generally includes to be fixed to the first main body of cycle frame, supports the second of rocking arm
Main body, and connect a pair of actuating connecting rods of the first main body and the second main body.
As its necessary element, rocking arm includes inner panel, outside plate and inner panel and the integrated a pair of pin of outside plate, and is arranged
A pair of gears between the inner plate and the outer plate.
In the remainder and in the appended claims of specification, term " inner panel " and " outside plate " refer to respectively works as rocking arm
The rocker plate in face of cycle wheel when on bicycle is installed in, and is disposed under above-mentioned mounting condition on voluntarily
Rocker plate on the reserved portion of car wheel.
On the corresponding pin that each gear is rotatably mounted in this pair pin.
In the prior art, using the pin being made up of the screw with head and threaded rod.Pin, which is installed in, to be made outside
At corresponding hole pairs on plate and on inner panel.
Generally, the threaded rod of screw is swirled in the tapped through hole of inner panel, until the head of screw is resisted against on outside plate.
Inner panel is generally by the alloy in lightweight or carbon fiber or high-tech high molecular polymer of such as aluminium
(technopolymer) it is made, to be easy to relative threaded through hole tapping.Inner panel is by carbon fiber or high-tech wherein
In the case that skill high molecular polymer is made, threaded through hole is made with appropriate metal insertion body.
Applicant have discovered that the rocking arm of the above-mentioned type has some shortcomings.
Especially, applicant have discovered that the upper wheel of this rocking arm is (that is, higher when rocking arm is installed on bicycle
One) after wherein the maximum sprocket wheel of transmission device in chosen chain wheel assembly (that is, near vehicle in chain wheel assembly
The sprocket wheel of wheel) operative configuration under have relative to cycle wheel minimum distance, in technical term, this distance is claimed
For " X factors ".
Applicant have observed that, particularly in the case of biconvex wheel (lenticular wheel), jolting or
In the case of the irregular road surface of person, inner panel can be accidentally towards wheel movement, and disturb and friction wheel.
This risk is also because following truth, i.e., in order to the grasping screw thread that enough numbers are produced in inner panel, inner panel
There must be predetermined thickness (applicant has measured the thickness for example equal to about 2.2mm).
Furthermore, it is assumed that the end of the bar of screw is commonly angled relative to inner panel protrusion, but there is this end can rub certainly
The risk of vehicle wheel.
Technical problem based on the present invention is to provide a kind of rocking arm for bicycle drive, this rocker configuration
Simply, it is cost-effective and reliable, and overcome disadvantages mentioned above.
The content of the invention
Therefore, the present invention relates to a kind of rocking arm for bicycle drive, including：
- inner panel；
- outside plate；
- and the inner panel and the integrated a pair of pin of the outside plate；
- a pair of gears being disposed between the inner panel and the outside plate, the gear is each by with energy rotation mode
On the corresponding pin in the pair of pin；
Lead to characterized in that, at least one described pin is inserted in the non-threaded being formed in the inner panel and the outside plate
Kong Zhong, and limited by following part：
Screw at-one in the inner panel and the outside plate, the screw has external screw thread and against surface；
Female screw at-another in the inner panel and the outside plate, female screw, which has, engages the external screw thread
Internal thread and with against surface.
Advantageously, the shortcoming of the rocking arm made according to prior art is dexterously overcome according to the rocking arm of the present invention.
In fact, due to the fact that non-threaded through hole is formed in inner panel and outside plate, the thickness of plate can be reduced, thus subtract
The thickness of small inner panel, because no longer necessary produce the-screw thread of as in the state of the art-specific minimal amount.
For this reason, it is interior in wherein rear transmission device chosen chain wheel assembly in the operative configuration of maximum sprocket wheel
Distance of the plate away from wheel is bigger relative to the distance of the rocking arm middle-range wheel of above-mentioned prior art.Therefore, jolting or do not advising
Then in the case of road surface, the risk of inner panel interference and motor bike wheel is significantly reduced.
Especially, the thickness of inner panel can be reduced to e.g., from about 1.5mm.It thus also obtain the mitigation of rocking arm weight.
In addition, also as the fact that the hole in inner panel and outside plate is not threaded, these plates can be by carbon fiber or high-tech
Skill high molecular polymer is made.Thus relative to the situation of aluminium rocking arm, the further mitigation of the rocking arm weight obtained.
Further, since not must be dedicated to produce the plate thickness part of screw thread, it is possible to by the head of screw and mother
The head of screw be embedded in especially produced in plate it is recessed in, by this way avoid the part protruded relative to plate
In the presence of.
In addition, screw-mother's screw attachment allows to produce a large amount of grasping screw threads.This allows inner panel and outside plate foot separated from one another
Enough distances, to allow chain to pass through without destroying its chain link, while still with the grasping screw threads of enough numbers keep two plates that
This engagement.
The preferred feature of above-mentioned rocking arm is listed in the dependent claims.Required according to specific situation, these feature energy
It is enough to combine freely of each other.
In the preferred embodiment of the rocking arm of the present invention, female screw includes the connection base with installation tool.
Advantageously, installation tool is inserted into connection base, so as to prevent female screw when screw is screwed onto on female screw
Rotation.
In the further preferred embodiments of the rocking arm of the present invention, female screw includes the appearance with shaped portion
Face, the shaped portion couples to produce with the anti-rotational shape of one in the inner panel and outside plate.
Advantageously, the setting of this shaped portion and prevent female screw from rotating in the case where screw is screwed into female screw
So that installing more easy, wherein the execution of the installation is without using any installation tool for female screw.
Preferably, the outer surface, which is accommodated in, is formed in recessed in the plate, and described recessed has shape
The shaped portion matched at least in part with the shape of the shaped portion of female screw.
Advantageously, by onboard providing the surface portion for being used to cooperate with the shaped portion of the outer surface of female screw, shape
Couple into the anti-rotational shape.
Preferably, the shaped portion of female screw and the recessed shaped portion are by least one flat table
Face is limited.
Advantageously, these flat surfaces are easily formed, and ensure female screw and plate it is recessed between it is easy and correct
Shape couples.
In the preferred embodiment of the rocking arm of the present invention, at least one described gear is revolvably directly installed on described
On female screw.
Advantageously, in this case, pin substantially only includes two parts (screw and female screw), and its install and
Dismounting is particularly easy to.
In another preferred embodiment of the rocking arm of the present invention, at least one described gear is rotatably mounted on bushing
On, the bushing interference or do not coordinate with interference on female screw and/or on the screw.
In the further preferred embodiments of the rocking arm of the present invention, at least one described gear is rotatably mounted on rolling
On dynamic bearing, the rolling bearing interference or do not coordinate with interference on female screw and/or on the screw.
Preferably, female screw is housed inside in one in the inner panel and the outside plate around phase against surface
The through hole formation answered it is recessed in, it is described it is recessed include it is for female screw and the appearance through hole against surface.
Advantageously, at least a portion of female screw can be embedded in it is recessed in, so as to reduce or even prevent female screw
Part protruded relative to corresponding plate.
Preferably, female screw includes the protuberance with the corresponding bottom cutting portion connection in the recessed interior generation
Point.
Advantageously, ledge then allows female screw to be secured to plate, so that in screw quilt once coupling with bottom cutting portion
The connection that female screw and plate are kept before female screw is screwed into, thus promotes the installation operation of rocking arm.
Preferably, the circular element that at least one described gear includes being made up of high-abrasive material in radial inner position.
Advantageously, this circular element allows basic friction free sliding-rolling between gear and pin.This solution
It is used as the alternative using rolling bearing.
Preferably, included coordinating a pair of ring protection disks at least one described pin according to the rocking arm of the present invention, and
And the pair of ring protection disk is disposed at the part opposite on the gear on the pin.This annual disk is held
The function that attachment section between row guard pin and gear is not influenceed by dust and dirt.
Preferably, the inner panel and outside plate are made up of aluminium alloy or carbon fiber or high-tech high molecular polymer.
Advantageously, as described above, thus the situation relative to aluminum rocking arm obtains the weight saving of rocking arm, applicant estimates
It is, for example, about 5g to count the weight saving.
Brief description of the drawings
From detailed description with reference to the accompanying drawings to the preferred embodiment of the present invention, will become apparent from the present invention further feature and
Advantage, these embodiments are provided for indicating and unrestricted purpose.In these figures：
- Fig. 1 is the decomposition diagram of the first embodiment of the rocking arm according to the present invention；
- Fig. 2 is the side view of Fig. 1 rocking arm；
- Fig. 3 is the cross-sectional view of Fig. 1 of the III-III planes interception in Fig. 2 rocking arm；
- Fig. 4 is the decomposition diagram of the second embodiment of the rocking arm according to the present invention；
- Fig. 5 is the side view of Fig. 4 rocking arm；
- Fig. 6 is the cross-sectional view of Fig. 4 of the VI-VI planes interception in Fig. 5 rocking arm；
- Fig. 7 is the decomposition diagram of the 3rd embodiment of the rocking arm according to the present invention；
- Fig. 8 is the cross-sectional view of Fig. 7 rocking arm；
- Fig. 8 a are the enlarged drawings for the part irised out in Fig. 8.
Embodiment
Starting point refers to Fig. 1-3, real there is shown with first of the rocking arm for bicycle drive according to the present invention
Apply example.With 10 overall this rocking arms of instruction.
Especially, the bicycle drive is rear transmission device.
Rocking arm 10 for the articulated quadrilateral actuating movement mechanism not shown in known type and figure by being connected to voluntarily
The vehicle frame of car.
Especially, rear transmission device includes being fixed to the first main body (not shown) of cycle frame, support rocking arm 10
The second main body (not shown), and connection the first main body and the second main body a pair of bar that is articulated and connected (not shown).
Rocking arm 10 includes inner panel 12, outside plate 14 and inner panel 12 and the integrated a pair of pin 16,18 of outside plate 14, and is arranged
A pair of gears 20,22 between inner panel 12 and outside plate 14.
Each gear 20,22 is rotatably mounted on corresponding pin 16,18.
Generally, when rocking arm 10 is installed on bicycle, pin 16 (and gear 20) is relative to pin 18 (and on tooth
Wheel is 22) higher.
Swivel pin 24 is externally fixed to outside plate 14, and rocking arm 10 is revolvably connected to rear transmission device by the pin
Second main body.
Inner panel 12 has the non-threaded through hole 12a for pin 16, and the non-threaded through hole 12b for pin 18.
Correspondingly, outside plate 14 has the non-threaded through hole 14a for pin 16, and the non-threaded through hole 14b for pin 18.
This couple of non-threaded through hole 12a, 14a and 12b, 14b of inner panel 12 and outside plate 14 are coaxial, and with gear 20
Rotation axis X and Y with 22 are overlapped.
Pin 16 is limited by screw 26 and female screw 36.
Screw 26 has head 26a, is limited in the 26a of head for outside plate 14 against surface 26b.
Screw 26 has a shank of screw 26c in insertion through hole 14a, and shank of screw 26c have limit external screw thread 26d from
By end.
The head 26a of screw 26 is accommodated in recessed 17 be formed in outside plate 14, and through hole 14a appears in recessed 17
On.
Recessed 17 include the head 26a for screw 26 against surface 26b against surface 17b.
Female screw 36 includes head 36a, is limited in the 36a of head for inner panel 12 against surface 36b.
Female screw 36 also has the shank of screw 36c in insertion through hole 12a.
Female screw 36 also internal thread 36d of the external screw thread 26d with joint screw 36.
Gear 20 is revolvably directly installed on female screw 36, is particularly wall-mounted on the shank of screw 36c of female screw 36
A part on.
The circular element 21 that gear 20 includes being made up of high-abrasive material in radial inner position.
The head 36a of female screw 36 include with shaped portion outer surface, wherein the shaped portion to produce with it is interior
The anti-rotational shape connection of plate 12.This shaped portion is limited by a pair of substantially parallel and diagonally opposite flat surface 36e.
The head 36a of female screw 36 is accommodated in recessed 13 be formed in inner panel 13, and through hole 12a appear in it is recessed
Enter on 13.Recessed 13 have the shaping that shape is matched at least in part with the shape of the head 36a of female screw 36 shaped portion
Part.This shaped portion is limited by a pair of substantially parallel and diagonally relative flat surface 13a, this couple of flat surface 13a with
The head 36a of female screw 36 flat surface 36e is against cooperation.Female screw 36 is avoided to be revolved in recessed 13 during screw 26 is screwed
The other shapes turned are also possible.
Recessed 13 include being used for the head 36a of female screw 36 against surface 36b against surface 13b.
With with the similar mode of pin 16, pin 18 limits by screw 28 and female screw 38.
Screw 28 has head 28a, is limited in the 28a of head for outside plate 14 against surface 28b.
Screw 28 also has the shank of screw 28c in insertion through hole 14b, and shank of screw 28c has restriction external screw thread 28d's
Free end.
The head 28a of screw 28 is accommodated in recessed 19 be formed in outside plate 14, and through hole 14b appear in it is recessed
On 19.
Recessed 19 include the head 28a for screw 28 against surface 28b against surface 19b.Female screw 38 includes
Head 38a, is limited for inner panel 12 in the 38a of head against surface 38b.
Female screw 38 also has a shank of screw 38c in insertion through hole 12b, and joint screw 28 external screw thread 28d it is interior
Screw thread 38d.
Gear 22 is rotatably mounted on the rolling bearing 42 between pin 18 and gear 22 itself.
Especially, as shown in Fig. 3 example, the inner ring 42a of rolling bearing 42 coordinates with interference by interference or not
On housing base 38f, wherein housing base 38f is arranged on the shank of screw 38c of female screw 38 free end.
Inner ring 42a also interference or is not matched with the housing base 43a set on ring-like spacer device element 43 with interference
On, the interference of ring-like spacer device element 43 or do not coordinate with interference on the shank of screw 28c of screw 28.Ring-like spacer device element 43
It is arranged to the surface that gear 22 is faced against outside plate 14.
The head 38a of female screw 38 includes the outer surface with shaped portion, and the wherein shaped portion is produced and inner panel 12
Anti-rotational shape connection.This shaped portion is limited by a pair of substantially parallel and diagonally opposite flat surface 38e.
The head 38a of female screw 38 is accommodated in recessed 15 be formed in inner panel 12, and through hole 12b appear in it is recessed
Enter on 15.Recessed 15 have the shaping that shape is matched at least in part with the shape of the head 38a of female screw 38 shaped portion
Part.This shaped portion is limited by substantially parallel and diagonal a pair of relative flat surface 15a, this couple of flat surface 15a against
Cooperate the head 38a of female screw 38 flat surface 38e.
Recessed 15 include being used for the head 38a of female screw 38 against surface 38b against surface 15b.
Rocking arm 10 also includes a pair of ring protection disk 25a, 25b, this couple of ring protection disk 25a, 25b coordinate each pin 16,
On 18, and it is respectively disposed on the opposite part of gear 20,22.
In Fig. 3 non-limiting example, ring protection disk 25a, 25b of pin 16 and 18, be particularly arranged to it is interior
The corresponding circle being made on those adjacent ring protection disks of plate 12, shank of screw 36c, the 38c for being disposed in female screw 36,38
In all groove 36g, 38g.
In Fig. 3 non-limiting example, it is arranged to the ring protection disk 25b adjacent with outside plate 14 and ring-like spacer device
The global formation of element 43.
Fig. 4-6 shows the second embodiment of the rocking arm 10 for bicycle drive according to the present invention.
Or function identical component similar with those components of Fig. 1-3 rocking arm is with identical mark in Fig. 4-6 rocking arm 10
Know symbol to indicate, and the above is referred on their explanation.
Rocking arm 10 includes inner panel 12, outside plate 14 and inner panel 12 and the integrated a pair of pin 116,118 of outside plate 14, and by cloth
Put a pair of gears 20,22 between inner panel 12 and outside plate 14.
The difference of Fig. 4-6 rocking arm 10 and Fig. 1-3 rocking arm 10 essentially consists of pin 116 and 118.
Pin 116 is limited by screw 126 and female screw 136.
Screw 126 has head 126a, is limited in the 126a of head for inner panel 12 against surface 126b.
Screw 126 also has the shank of screw 126c in insertion through hole 12a, and shank of screw 126c has restriction external screw thread
126d free end.
Especially, the mark that there is external screw thread 126d free end the remainder relative to shank of screw 126c to reduce is limited
Claim diameter.
The head 126a of screw 126, which is accommodated in, to be formed in recessed in inner panel 12, and to appear in this recessed by through hole 12a
On entering.This recessed head 126a including for screw 126 against surface 126b against surface.
Female screw 136 includes head 136a, is limited in the 136a of head for outside plate 14 against surface 136b.
Female screw 136 also has the shank of screw 136c in insertion through hole 14a.
Female screw 136 also has the internal thread 136d being made at the shank of screw 136c of female screw 136, and internal thread
The external screw thread 126d of 136d joint screws 126.
Gear 20 is rotatably mounted on bushing 150, the interference of bushing 150 or is not coordinated with interference in female screw
On 136 and on screw 126, particularly coordinate on the shank of screw 136c of female screw 136 part and screw 126 screw
On the part for not limiting external screw thread 126d on bar 126c.
Bushing 150 plays the rotary liner of gear 20.
Gear 20 includes the circular element 21 being made up of high-abrasive material in radial inner position.
Female screw 136 includes the connection base 136h with installation tool.Connection base 136h appears in female screw 136
On the 136a of head.
The head 136a of female screw 136 is accommodated in recessed 17 be formed in outside plate 14, and through hole 14a is appeared in
On recessed 17.
Recessed 17 include being used for the head 136a of female screw 136 against surface 136b against surface 17b.
With with the similar mode of pin 116, pin 118 limits by screw 128 and female screw 138.
Screw 128 has head 128a, is limited in the 128a of head for inner panel 12 against surface 128b.
Screw 128 also has the shank of screw 128c in insertion through hole 12b, and shank of screw 128c has restriction external screw thread
128d free end.
The head 128a of screw 128, which is accommodated in, to be formed in recessed in inner panel 12, and to appear in this recessed by through hole 12b
On entering.This recessed head 128a including for screw 128 against surface 128b against surface.
Female screw 138 includes head 138a, is limited in the 138a of head for outside plate 14 against surface 138b.
Female screw 138 also has the shank of screw 138c being inserted into through hole 14a.
Female screw 138 also has the internal thread 138d being made at the shank of screw 138c of female screw 138, and internal thread
The external screw thread 128d of 138d joint screws 128.
Female screw 138 includes the connection base 138h with installation tool.Connection base 138h appears in female screw 138
On the 138a of head.
The head 138a of female screw 138 is accommodated in recessed 19 be formed in outside plate 14, and through hole 14a is appeared in
On recessed 19.
Recessed 19 include being used for the head 138a of female screw 138 against surface 138b against surface 19b.
Gear 22 is rotatably mounted on rolling bearing 42, rolling bearing 42 between pin 118 and gear 22 itself it
Between.
Especially, as shown in Fig. 6 example, the inner ring 42a interference of rolling bearing 42 or do not coordinate with interference in quilt
Be arranged on the corresponding housing base 143a on a pair of ring-like spacer device elements 143, the interference of ring-like spacer device element 143 or
Do not coordinate with interference on the shank of screw 128c of screw 128 and on the shank of screw 138c of female screw 138.
Ring-like spacer device element 143 is arranged to respectively to be faced against inner panel 12 in face of the surface of gear 22 and outside plate 14
The surface of gear 22.
Fig. 4-6 rocking arm 10 also includes a pair of ring protection disks 25a, 125b, and this couple of ring protection disk 25a, 125b coordinate
On each pin 116,118, and it is respectively arranged at the opposite part of gear 20,22.
In Fig. 6 non-limiting example, the ring protection disk 25a of pin 116 is engaged in screw 126 and female screw 136
Shank of screw 126c, 136c on.
The ring protection disk 25a of pin 116 is disposed at the part opposite on bushing 150.
In Fig. 6 non-limiting example, the ring protection disk 125b of pin 118 and corresponding ring-like spacer device element 143
Global formation.
In alternative embodiment (not shown), the position of at least one in screw 126,128 and corresponding female screw
136th, the position of at least one can be overturned in 138, i.e. screw 126 (and/or screw 128) can be inserted into the logical of outside plate 14
In hole 14a (and/or through hole 14b), and corresponding female screw 136 (and/or female screw 138) can be inserted into the logical of inner panel 12
In hole 12a (and/or through hole 12b).
Fig. 7,8 and 8a show the 3rd embodiment of the rocking arm 10 for bicycle drive according to the present invention.
Component similar or function identical with those components of Fig. 1-6 rocking arm 10 in Fig. 7,8 and 8a rocking arm 10
Indicated with identical identifier, and the above is referred on their explanation.
Rocking arm 10 includes inner panel 12, outside plate 14 and inner panel 12 and the integrated a pair of pin 216,218 of outside plate 14, and by cloth
Put a pair of gears 20,22 between inner panel 12 and outside plate 14.
The difference of Fig. 7,8 and 8a rocking arm 10 and Fig. 1-3 rocking arm 10 and Fig. 4-6 rocking arm 10 essentially consist of pin 216 and
218。
Pin 216 is limited by screw 226 and female screw 236.
Screw 226 has head 226a, is limited in the 226a of head for inner panel 12 against surface 226b.Against surface
226b has truncated conical shape, this be different from the screw 26,126 in preceding embodiment of the present invention against surface 26b, 126b
(substantially planar).
The head 226a of screw 226, which is accommodated in, to be formed in recessed in inner panel 12, and to appear in this recessed by through hole 12a
On entering.It is this it is recessed including for screw 226 head 226a against surface 226b, with truncated conical shape against
Surface.
Screw 226 also has the shank of screw 226c being inserted into through hole 12a, 14a, and shank of screw 226c has restriction outer
Screw thread 226d free end.
Female screw 236 is wherein to limit the nut against surface 236b for outside plate 14.
Female screw 236 also internal thread 236d of the external screw thread 226d with joint screw 226.
Female screw 236 includes the outer surface with shaped portion, and the wherein shaped portion is anti-with outside plate 14 to produce
Rotated shape couples.This shaped portion is limited by a pair of substantially parallel and diagonally opposite flat surface 236e.
Female screw 236 is accommodated in recessed 17 be formed in outside plate 14, and through hole 14a is appeared on recessed 17.
Recessed 17 have the shaped portion that shape is matched at least in part with the shape of the shaped portion of female screw 236.This forming section
Divide and limited by a pair of substantially parallel and diagonally relative flat surface 17a, this couple of flat surface 17a is put down against female screw 236
Cooperate surface 236e.
Recessed 17 include being used for female screw 36 against surface 236b against surface 17b.
In addition, as pointed out in Fig. 8 a, female screw 236 includes the corresponding bottom cutting portion 17i with being formed in recessed 17
The ledge 236i of connection.
Gear 20 is rotatably mounted on bushing 150, the interference of bushing 150 or is not coordinated with interference in screw 226
On, particularly coordinate on the shank of screw 226c of screw 226 part for wherein not limiting external screw thread 226d.
Bushing 150 plays the rotary liner of gear 20.
Gear 20 includes the circular element 21 being made up of high-abrasive material in radial inner position.
With with the similar mode of pin 216, pin 218 limits by screw 228 and female screw 238.
Screw 228 has head 228a, is limited in the 228a of head for inner panel 12 against surface 228b.Against surface
228b has truncated conical shape.
The head 228a of screw 228, which is accommodated in, to be formed in recessed in inner panel 12, and to appear in this recessed by through hole 12b
On entering.The recessed head 228a including for screw 228 against surface 228b, with truncated conical shape against table
Face.
Screw 228 also has the shank of screw 228c being inserted into through hole 12b, 14b, and shank of screw 228c has restriction outer
Screw thread 228d free end.
Female screw 238 is wherein to limit the nut against surface 238b for outside plate 14.
Female screw 238 also internal thread 238d of the external screw thread 228d with joint screw 228.
Female screw 238 includes the outer surface with shaped portion, and the wherein shaped portion produces anti-rotational with outside plate 14
Shape couples.This shaped portion is limited by a pair of substantially parallel and diagonally opposite flat surface 238e.
Female screw 2386 is accommodated in recessed 19 be formed in outside plate 14, and through hole 14a appear in this recessed 19
On.Recessed 19 have the shaped portion that shape is matched at least in part with the shape of the shaped portion of female screw 238.This shaping
Part is limited by a pair of substantially parallel and diagonally relative flat surface 19a, and this couple of flat surface 19a is against female screw 238
Cooperate flat surface 238e.
Recessed 19 include being used for female screw 238 against surface 238b against surface 19b.
In addition, female screw 238 includes the protuberance of the corresponding bottom cutting portion 19i connections with being formed in described recessed 19
Divide 238i.
Gear 22 is rotatably mounted on rolling bearing 42, rolling bearing 42 between pin 218 and gear 22 itself it
Between.
Especially, as shown in Fig. 8 example, the inner ring 42a interference of rolling bearing 42 or do not coordinate with interference in quilt
Be arranged on the corresponding housing base 243a on a pair of ring-like spacer device elements 243, the interference of ring-like spacer device element 243 or
Do not coordinate with interference on the shank of screw 228c of screw 228.
Ring-like spacer device element 243 is arranged in inner panel 12 and faces tooth in face of the near surface and outside plate 14 of gear 22
The near surface of wheel 22.
Fig. 7,8 and 8a rocking arm 10 also include a pair of ring protection disks 25a, 25b, and this couple of ring protection disk 25a, 25b match somebody with somebody
Close on each pin 216,218, and be respectively arranged at the opposite part of gear 20,22.
In Fig. 8 non-limiting example, ring protection disk 25a, 25b of pin 216,218 are engaged in the spiral shell of screw 226
On nail rod 226c.
The ring protection disk 25a of pin 116 is disposed at the part opposite on bushing 150.
In Fig. 8 non-limiting example, the ring protection disk 25b of pin 218 is between ring-like spacer device element 243 and inner panel
12nd, between outside plate 14.
Inner panel 12 and outside plate 14 are preferably made up of carbon fiber.
Certainly, those skilled in the art can make many modifications and variant to the invention described above, so as to meet it is specific and
Contingent claim, these modifications and variant are all in protection scope of the present invention that following article claim is limited.
Claims (13)
1. a kind of rocking arm (10) for bicycle drive, including：
- inner panel (12)；
- outside plate (14)；
- and the inner panel (12) and the integrated a pair of pin (16,18 of the outside plate (14)；116、118；216、218)；
- a pair of the gears (20,22) being disposed between the inner panel (12) and the outside plate (14), the gear (20,22)
Each so that the corresponding pin (16,18 in the pair of pin can be rotatably mounted to；116、118；216th, on 218)；
Characterized in that, at least one described pin (16,18；116、118；216th, 218) it is inserted into and is formed at the inner panel (12)
In the non-threaded through hole (12a, 12b, 14a, 14b) in the outside plate (14), and limited by following part：
Screw (26,28 at-one in the inner panel (12) and the outside plate (14)；126、128；226th, 228), it is described
Screw has external screw thread (26d, 28d；126d、128d；226d, 228d) and against surface (26b, 28b；126b、128b；226b、
228b)；
Female screw (36,38 at-another in the inner panel (12) and the outside plate (14)；136、138；236th, 238),
Female screw, which has, engages described external screw thread (26d, 28d；126d、128d；226d, 228d) internal thread (36d, 38d；136d、
138d；236d, 238d) and have against surface (36b, 38b；136b、138b；236b、238b).
2. rocking arm (10) according to claim 1, wherein female screw (136,138) includes the connection with installation tool
Connect base (136h, 138h).
3. rocking arm (10) according to claim 1, wherein female screw (36,38；236th, 238) include with forming section
Divide (36e, 38e；236e, 238e) outer surface, the shaped portion is to produce and the inner panel (12) and the outside plate (14)
In the anti-rotational shape of one connection.
4. rocking arm (10) according to claim 3, wherein the outer surface, which is accommodated in, is formed at the plate (12；14) in
Recessed (13,15；17th, in 19), and described recessed there is shape and female screw (36,38；236th, 238) it is described into
Shape part (36e, 38e；236e, 238e) shaped portion (13a, 15a for matching at least in part；17a、19a).
5. rocking arm (10) according to claim 3, wherein the shaped portion by least one flat surface (13a, 15a,
36e、38e；17a, 19a, 236e, 238e) limit.
6. rocking arm (10) according to claim 1, gear (20) is revolvably mounted directly described in wherein at least one
On female screw (36).
7. rocking arm (10) according to claim 1, gear (20) is rotatably mounted on lining described in wherein at least one
Cover on (150), bushing (150) interference or do not coordinate with interference on female screw (136) and/or the screw
(226) on.
8. rocking arm (10) according to claim 1, gear (22) is rotatably mounted on rolling described in wherein at least one
On dynamic bearing (42), rolling bearing (42) interference or do not coordinate with interference on female screw (38,138) and/or
On the screw (128,228).
9. rocking arm (10) according to claim 1, wherein female screw (36,38；136、138；236th, 238) described
Against surface (36b, 38b；136b、138b；236b, 238b) it is housed inside in the inner panel (12) and the outside plate (14)
Around corresponding through hole (12a, 12b in one；14a, 14b) formed recessed (13,15；17th, in 19), described recessed (13,15；
17th, 19) include for female screw (36,38；136、138；236th, 238) and occur the through hole (12a, 12b, 14a,
14b) against surface (13b, 15b；17b、19b).
10. rocking arm (10) according to claim 9, wherein female screw (236,238) include with described recessed
The ledge (236i, 238i) of corresponding bottom cutting portion (the 17i, 19i) connection produced in (17,19).
11. rocking arm (10) according to claim 1, gear (20) described in wherein at least one is wrapped in radial inner position
Include the circular element (21) being made up of high-abrasive material.
12. rocking arm (10) according to claim 1, including coordinate at least one pin (16,18；116、118；
216th, 218) on a pair of ring protection disks (25a, 25b；125b), and the pair of ring protection disk (25a, 25b；125b)
It is disposed on installed in the pin (16,18；116、118；216th, 218) on the opposite part of the gear (20,22)
Place.
13. rocking arm (10) according to claim 1, wherein the inner panel (12) and the outside plate (14) by aluminium alloy or
Carbon fiber or high-tech high molecular polymer are made.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITUA2016A001565 | 2016-03-11 | ||
| ITUA2016A001565A ITUA20161565A1 (en) | 2016-03-11 | 2016-03-11 | Barbell for a bicycle change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107176237A true CN107176237A (en) | 2017-09-19 |
Family
ID=56084215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710145615.7A Pending CN107176237A (en) | 2016-03-11 | 2017-03-13 | Rocking arm for bicycle drive |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10696357B2 (en) |
| EP (1) | EP3216688B1 (en) |
| JP (1) | JP2017190122A (en) |
| CN (1) | CN107176237A (en) |
| IT (1) | ITUA20161565A1 (en) |
| TW (1) | TW201736196A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD866407S1 (en) * | 2017-04-24 | 2019-11-12 | Ceramicspeed Sport A/S | Rear derailleur cage |
| EP3501964B1 (en) | 2017-12-22 | 2024-01-31 | Campagnolo S.r.l. | Rocker arm for a bicycle gearshift |
| US11148755B2 (en) * | 2018-07-13 | 2021-10-19 | Shimano Inc. | Bicycle derailleur |
| DE102020001877A1 (en) * | 2020-03-23 | 2021-09-23 | Sram Deutschland Gmbh | Derailleur roller with supporting structure and overload protection |
| USD1038844S1 (en) * | 2020-12-22 | 2024-08-13 | Marcin GOLEC | Chain-guide for cycle gear |
| USD1017477S1 (en) * | 2021-02-23 | 2024-03-12 | Marcin GOLEC | Chain-guide for cycle gear |
| US12122479B2 (en) | 2021-06-29 | 2024-10-22 | Sram Deutschland Gmbh | Modular bicycle derailleur |
| USD1009722S1 (en) * | 2021-11-10 | 2024-01-02 | The Cycle Group | One-piece chain cage for a rear derailleur |
| TWM642931U (en) * | 2023-02-10 | 2023-06-21 | 一馬國際有限公司 | Bicycle eccentric pulley wheel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1161775B (en) * | 1961-03-14 | 1964-01-23 | Andre Maxime Huret | Chain guide for bicycles or similar vehicles |
| US4183255A (en) * | 1974-12-16 | 1980-01-15 | Fichtel & Sachs Ag | Bicycle with derailleur arrangement |
| US4226131A (en) * | 1977-10-14 | 1980-10-07 | Maeda Industries, Ltd. | Bicycle rear derailleur |
| DE3113700A1 (en) * | 1981-04-04 | 1982-10-21 | Hans Christian Ing.(grad.) 5042 Erftstadt Smolik | Bicycle dérailleur |
| CN1915738A (en) * | 2005-07-19 | 2007-02-21 | 株式会社岛野 | Bicycle rear derailleur |
| CN101209742A (en) * | 2006-12-26 | 2008-07-02 | 株式会社岛野 | Bicycle rear derailleur |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3402942A (en) * | 1966-06-17 | 1968-09-24 | Shimano Industrial Co | Device for tensioning the driving chain in a bicycle equipped with coaster brake and exposed speed change gear |
| FR2213864B1 (en) * | 1973-01-15 | 1977-07-29 | Huret Roger | |
| US4058020A (en) * | 1974-01-30 | 1977-11-15 | Roger Huret | Device for guiding the chain of derailleur bicycle gear changers |
| JPS5467457U (en) * | 1977-10-22 | 1979-05-14 | ||
| FR2466388A1 (en) * | 1979-10-05 | 1981-04-10 | Huret Roger | DERAILLEUR FOR CYCLE |
| US4433963A (en) * | 1979-12-29 | 1984-02-28 | Shimano Industrial Company Limited | Chain guide for a derailleur for a bicycle |
| JPS59128081A (en) * | 1983-01-13 | 1984-07-24 | マエダ工業株式会社 | Rear derailer for bicycle |
| FR2560816B1 (en) * | 1984-03-12 | 1986-10-03 | Simplex Ets | PROCESS FOR THE MANUFACTURE AND MOUNTING OF ROTATING ORGANS BETWEEN FLANGES AND THE PRODUCTS OBTAINED, IN PARTICULAR USE FOR TIGHTENING AND WINDING THE CHAIN IN CHANGES IN SPEED FOR CYCLES AND SIMILAR VEHICLES |
| US5350339A (en) * | 1993-03-10 | 1994-09-27 | Carmichael George H | Derailleur pulley for use with bicycle derailleur systems |
| US5466194A (en) * | 1994-06-29 | 1995-11-14 | Bebop Incorporated | Jockey wheel assembly |
| ITTO20001124A1 (en) * | 2000-12-01 | 2002-06-01 | Campagnolo Srl | ROCKER GROUP FOR THE REAR DERAILLEUR OF A BICYCLE. |
| JP2005238979A (en) * | 2004-02-26 | 2005-09-08 | Shimano Inc | Rear derailleur for bicycle |
| US7244203B2 (en) * | 2004-02-26 | 2007-07-17 | Shimano (Singapore) Pte., Ltd. | Bicycle derailleur |
| US7666111B2 (en) * | 2005-07-19 | 2010-02-23 | Shimano Inc. | Bicycle rear derailleur |
| US20080058136A1 (en) * | 2006-08-31 | 2008-03-06 | Shimano Inc. | Bicycle derailleur |
| JP2008195129A (en) * | 2007-02-09 | 2008-08-28 | Shimano Inc | Rear derailleur for bicycle |
| US20090137354A1 (en) * | 2007-11-27 | 2009-05-28 | Shimano Inc. | Bicycle rear derailleur |
| US7871346B2 (en) * | 2008-03-31 | 2011-01-18 | Shimano, Inc. | Bicycle derailleur |
| US8105193B2 (en) * | 2008-10-10 | 2012-01-31 | Shimano Inc. | Bicycle rear derailleur |
| US8870692B2 (en) * | 2010-09-30 | 2014-10-28 | Shimano, Inc. | Bicycle derailleur with rotation resistance |
| US8852041B2 (en) * | 2010-09-30 | 2014-10-07 | Shimano, Inc. | Bicycle derailleur with rotation resistance |
| US9090311B2 (en) * | 2010-10-06 | 2015-07-28 | Zike, Llc | Derailleur |
| JP5615796B2 (en) * | 2011-12-20 | 2014-10-29 | 林昌慧 | Rear transmission for bicycle |
| US9290235B2 (en) * | 2013-06-18 | 2016-03-22 | Shimano Inc. | Bicycle derailleur |
| US10577053B2 (en) * | 2017-06-06 | 2020-03-03 | Sram, Llc | Damper for a bicycle component |
-
2016
- 2016-03-11 IT ITUA2016A001565A patent/ITUA20161565A1/en unknown
-
2017
- 2017-03-08 TW TW106107526A patent/TW201736196A/en unknown
- 2017-03-09 EP EP17159977.2A patent/EP3216688B1/en active Active
- 2017-03-09 JP JP2017044800A patent/JP2017190122A/en active Pending
- 2017-03-10 US US15/455,878 patent/US10696357B2/en active Active
- 2017-03-13 CN CN201710145615.7A patent/CN107176237A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1161775B (en) * | 1961-03-14 | 1964-01-23 | Andre Maxime Huret | Chain guide for bicycles or similar vehicles |
| US4183255A (en) * | 1974-12-16 | 1980-01-15 | Fichtel & Sachs Ag | Bicycle with derailleur arrangement |
| US4226131A (en) * | 1977-10-14 | 1980-10-07 | Maeda Industries, Ltd. | Bicycle rear derailleur |
| DE3113700A1 (en) * | 1981-04-04 | 1982-10-21 | Hans Christian Ing.(grad.) 5042 Erftstadt Smolik | Bicycle dérailleur |
| CN1915738A (en) * | 2005-07-19 | 2007-02-21 | 株式会社岛野 | Bicycle rear derailleur |
| CN101209742A (en) * | 2006-12-26 | 2008-07-02 | 株式会社岛野 | Bicycle rear derailleur |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201736196A (en) | 2017-10-16 |
| US20170259881A1 (en) | 2017-09-14 |
| EP3216688B1 (en) | 2019-01-02 |
| US10696357B2 (en) | 2020-06-30 |
| JP2017190122A (en) | 2017-10-19 |
| ITUA20161565A1 (en) | 2017-09-11 |
| EP3216688A1 (en) | 2017-09-13 |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170919 |
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